Astronomers have been confounded by recent evidence that the universe expanded at different rates throughout its life. New ...

Astronomers are celebrating the completion of a 2.5-billion-pixel panoramic picture of the entire Andromeda Galaxy. The team includes several UC Santa Cruz researchers who made significant ...

Edwin Hubble's discovery of the expanding universe transformed cosmology, revealing countless galaxies and laying the ...

In 2011, the 30-year space shuttle program ended as Atlantis touched down at NASA’s Kennedy Space Center. With five shuttles ...

How do images taken by the James Webb Space Telescope (JWST) appear so colorful, and where do the colors come from?

Mars, once a planet abundant with water, now lies as a barren, arid expanse. Its surface features reveal a history where ...

For humans, the most important star in the universe is our sun. The second-most important star is nestled inside the ...

Astronomers have released a set of more than a million simulated images showcasing the cosmos as NASA’s upcoming Nancy Grace ...

Astronomers have released a set of more than a million simulated images showcasing the cosmos as NASA's upcoming Nancy Grace ...

NASA's Roman Space Telescope is preparing for launch in 2027, with a mission to study distant galaxies and explore dark ...